…objective, particularly in patients with left ventricular dysfunction and/or MVD. Nevertheless, the optimal extent and timing of intervention depend on the clinical setting, haemodynamic…

…left coronary cusp (LCC), and noncoronary cusp (NCC), showing the same branches as in panel A for cross modality comparison. Clinical features Occlusion of the…

…alleviate ischemic chest pain may lead to hemodynamic collapse in patients with right ventricular ischemia or infarction. Recognizing ECG signs of right ventricular involvement is…

…hypertension with or without left ventricular hypertrophy. Among patients with NSTE ACS undergoing angiography, approximately 10% have no critical epicardial stenosis. In some of these…

…a cerebral artery is occluded due to local atherothrombosis or occlusion due to embolization. Approximately 30% of all ischemic strokes are caused by cardiac embolism…

…a proximal occlusion (in the RCA) which cuts off blood flow to the right ventricle, will also affect the inferior wall of the left ventricle…

…inversion of the T waves. These T waves are called post ischemic T waves and they indicate that the infarction process is more or less…

…occur when atherosclerotic plaques rupture or erode, leading to atherothrombosis and occlusion. This causes severe ischemia and the vast majority of patients experience angina pectoris…

…abrupt reduction in coronary blood flow caused by thrombotic occlusion of a previously atherosclerotic artery. Plaque erosion or rupture exposes thrombogenic material to circulating blood…

…left ventricular ejection fraction, procedural factors and anticipated outcomes. The supplied material does not describe specific physical signs of CTO or a dedicated physical examination…

…The heart is rotated 30° to the left in the thorax. This positions the basal portion of the left lateral wall posteriorly in thorax (Figure…

…and Pathophysiology Posterior myocardial infarction is myocardial necrosis involving the posterior region of the left ventricle, usually as part of an inferoposterior or posterolateral infarction…

…vasoconstriction of one or more coronary arteries. Epicardial spasm produces a reversible functional occlusion and usually causes transmural ischaemia. The resulting abnormalities in left ventricular…

…the conventional 12 lead ECG. These situations are as follows: Transmural ischemia located in the posterolateral portion of the left ventricle . Transmural ischemia located in…

…deep veins of the legs or pelvis. Thrombi formed in the deep veins in the legs or pelvis can detach and flow via inferior vena…

…coronary artery occlusion can be identified. Injection of contrast media into the ventricle will instead reveal that the apical portion of the left ventricle is…

…and degree of myocardial involvement The anatomical territory, including anterior, inferoposterolateral or right ventricular involvement Pre existing abnormalities such as prior infarction, left bundle branch…

…that applying a 5 minute occlusion reflow cycle repeatedly to the circumflex artery before a 60 minute occlusion of the left anterior descending coronary artery…

…30 days if left untreated. Moreover, the pathophysiology of NSTEMI and unstable angina is very similar: both are due to partial (incomplete) coronary artery occlusions …

…encompasses several physiological states. Brief coronary occlusion or relatively prolonged moderate ischemia may produce post ischemic stunning. In the absence of infarction, contractile recovery can…

…of upsloping ST segment depressions with prominent T waves in the majority of the chest leads may indicate an acute occlusion in the LAD (left…

…tunica adventitia , respectively. Figure 1. Layers of the left ventricular wall, pericardium and ventricular cavity. The endocardium The endocardium lines the atria, ventricles and the…

…in left ventricular depolarization and repolarization, which result in secondary ST T changes. Such ST T changes may mimic (simulate) or mask ischemia. Simulation of…

…left main coronary artery disease . It integrates multiple variables, including the number of lesions, their location, and specific characteristics such as bifurcations, chronic total occlusions…

…left atrial appendage . Such thrombi may leave the appendage and enter the systemic circulation which causes thromboembolic occlusions of arteries in the brain, limbs or…

…women or three in men, or at least four drinks for women or five for men on one occasion. Pharmacokinetics and pathophysiology Approximately 95% of…

…colleagues in 2018. This approach seeks to anchor diagnostic and therapeutic decisions in the presence or absence of an acute coronary occlusion, rather than rigid…

…partial occlusion of the artery (i.e. coronary blood flow is not completely obstructed). NSTE ACS typically presents with ST segment depressions and/or T…

…inversions (negative T waves) do not affect the management of cardiac arrest. Recurrent VT or VF after ROSC in a patient with a coronary risk…

…the 99th percentile upper reference limit (URL). The injury is considered acute if there is a documented rise and/or fall of cTn values. However…

…4b and 4c fulfil the criteria for type 1 MI because they represent coronary atherothrombotic events in the setting of a stent thrombosis or restenosis…

…and the ensuing atherothrombosis, causes a complete occlusion of the coronary artery. Ischemia will extend from the endocardium to the epicardium in the affected myocardial…

…and the ensuing atherothrombosis, causes a complete occlusion of the coronary artery. Ischemia will extend from the endocardium to the epicardium in the affected myocardial…

…PAD) is a clinical disorder caused by stenosis or occlusion of the aorta or arteries supplying the limbs. In adults over 40 years of age…

…recurrent infarction, or acute coronary occlusion. Stent thrombosis may occur within hours or days of implantation or many months to years later. Recurrent chest pain…

…pathophysiology of refractory angina is heterogeneous. In obstructive CAD, symptoms may result from extensive or diffuse epicardial disease, chronic total occlusion, incomplete revascularization, or coronary…

…and crushing, though it may occasionally be reported as stabbing or burning. It resembles the discomfort of angina pectoris but typically occurs at rest, is…

… However, T wave inversions that are accompanied by ST segment deviation (either depression or elevation) is representative of ischemia (but in that scenario, it is…

…causing microvascular embolization (i.e occluding smaller vessels downstream). The thrombosis causes occlusion of the artery; blood flow may be partially or completely obstructed. Consequently…

…within an hour of arterial occlusion. The classic clinical constellation is remembered as the “six Ps”: Pain Paresthesia Pallor Pulselessness Poikilothermia, or coldness Paralysis Pain…

…opening of a persistently occluded infarct related artery in a stable and asymptomatic patient is by contrast not recommended [1,5]. STEMI criteria and occlusion…

…cardiovascular death, and progression of atherosclerotic disease in patients with established coronary or other atherosclerotic vascular disease. Antiplatelet therapy is a central component because platelet…

…NSTEMI) or unstable angina (UA), is attributed to the greater extent of ischemia present in STEMI. In STEMI, a complete coronary artery occlusion leads to…

…immediate stenting or other procedural intervention. The clinical importance of the finding is related to the extent of myocardium at risk. Occlusion or impaired perfusion…

…dissection with obstruction of the true lumen Occlusion of a major epicardial artery or bypass graft Side branch occlusion or thrombus Disruption of collateral flow…

…identify large vessel occlusion, dissection or other vascular pathology CT perfusion Used with an unclear time of onset, a late time window, or when thrombectomy…

…may be falsely normal because of medial sclerosis — in that case add toe pressure measurement. Absolute: ABI < 0.5 or toe pressure < 30…

…linking). Concurrent activation of the coagulation cascade leads to thrombin generation and fibrin deposition, culminating in a partially or fully occlusive intraluminal thrombus [5] . ACS…